First, contact customer care at 855-463-9333 or send an email to exedelistens@viasat.com (include you account and contact information in the email but do not post the information here since this is a public forum).

With both approaches, some remote trouble shooting with the eSVT Job Aid on their end can determine whether you have an equipment issue while at the same time providing a glimpse into the general types of activities that may be affecting your data usage.

If not attributable to an equipment related issue, the generalize breakdowns by type of activity can assist; however many may find them too generalized in locating the exact activities causing apparent excessive data usage. While pointing you at the right haystack, finding the needle in that haystack is challenging at best.

For that, you'll need to install a fairly robust traffic monitoring application which yields more insight into usage details. Availability of these varies by operating system and/or devices. Naturally, installing one now won't give you any insight into past activities but is useful going forward.

If by chance using Windows, one of the newer ones available for free is GlassWire at:

While very robust, GlassWire is less intimidiating to casual users (using some eye-catching, grapichal visualizations) and its Internet & Bandwidth Usage Monitoring features provide a 30 day history, which allows pinpointing applications, hosts and types of traffic that may deserve your attention. If nothing else, it can serve as a real eye-opener for what's really going on behind the scenes without your knowledge and when. Knowing that, there are any number of actions that can be taken to decrease any unwanted data usage. It's no longer a simple matter of knowing what you are actually doing, but what's being done on your behalf and then taking appropriate actions.

Note that most of these traffic monitors that are suitable for home use, require installing them on each device accessing your wired or wireless router.